Evaluation of fertilizer additions to stimulate oil biodegradation in sand seashore mesocosms SCIE SCOPUS KCI

Cited 33 time in WEB OF SCIENCE Cited 39 time in Scopus
Title
Evaluation of fertilizer additions to stimulate oil biodegradation in sand seashore mesocosms
Author(s)
Choi, SC; Kwon, KK; Sohn, JH; Kim, SJ
KIOST Author(s)
Kwon, Kae Kyoung(권개경)
Publication Year
2002-06
Abstract
Effects of fertilizer additions for oil degradation were examined in sand seashore mesocosms. Within 37 days, up to 85% removal was achieved by the addition of slow-release type fertilizer (SRF) with the initial degradation rate of 423.3 mg oil (kg sand)(-1) day(-1). The removal was mostly of biological origin based on the changes of C(17)/pristane and C(18)/phytane ratios from 2.60 to 0.81 and from 3.55 to 1.29, respectively. The addition of oleophilic fertilizer (Inipol EAP22) was less effective and resulted in the removal of 64% of the added oil (3%, v/v) with a lower initial degradation rate. Petroleum-degrading bacteria had achieved a value of 1 x 10(8) CFU (g sand)(-1) at Day 3 and this peak exactly coincided with the initial degradation in the SRF-treated mesocosm. In this mesocosm, surface tension values were decreased drastically during Days 3 and 8, suggesting that microbially-produced surface-active agents actively enhanced the oil degradation rate and cell proliferation. Although the Inipol-treated mesocosm appeared to show significantly enhanced oil degradation compared to that of the untreated control mesocosm, Inipol was found to be less effective than SRF in enhancing a true oil-degrader when compared under similar experimental conditions.
ISSN
1017-7825
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/5709
Bibliographic Citation
JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY, v.12, no.3, pp.431 - 436, 2002
Publisher
KOREAN SOC MICROBIOLOGY & BIOTECHNOLOGY
Subject
MICROBIAL-DEGRADATION; BIOREMEDIATION; HYDROCARBONS; MICROCOSMS; CULTURES; SURFACE; SPILL
Keywords
degradation; oil; oleophilic fertilizer; slow-release fertilizer; surface tension
Type
Article
Language
English
Document Type
Article
Publisher
KOREAN SOC MICROBIOLOGY & BIOTECHNOLOGY
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